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ACCOUNTS RECEIVABLES (Tables)
 3 Months Ended
Mar. 31, 2020
Receivables [Abstract]  
AR Facilities The following table summarizes the AR Facilities activity:

 
March 31,
 
2020
 
2019
 
($ in millions)
Balance at beginning of year
$
63.1

 
$
132.4

     Gross receivables sold
262.0

 
134.9

     Payments received from customers on sold accounts
(256.2
)
 
(170.5
)
Balance at end of period
$
68.9

 
$
96.8